multithread.h

   1 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r
   2 // multithread.h\r
   3 \r
   4 \r
   5 #ifndef _MULTITHREAD_H\r
   6 #  define _MULTITHREAD_H\r
   7 \r
   8 #  include <windows.h>\r
   9 \r
  10 \r
  11 ///\r
  12 class SyncObject\r
  13 {\r
  14 public:\r
  15         ///\r
  16         virtual void acquire() = 0;\r
  17         ///\r
  18         virtual void acquire(int ) {\r
  19                 acquire();\r
  20         }\r
  21         ///\r
  22         virtual void release() = 0;\r
  23 };\r
  24 \r
  25 \r
  26 ///\r
  27 class CriticalSection : public SyncObject\r
  28 {\r
  29         CRITICAL_SECTION m_cs;                  ///\r
  30 \r
  31 public:\r
  32         ///\r
  33         CriticalSection() {\r
  34                 InitializeCriticalSection(&m_cs);\r
  35         }\r
  36         ///\r
  37         ~CriticalSection() {\r
  38                 DeleteCriticalSection(&m_cs);\r
  39         }\r
  40         ///\r
  41         void acquire() {\r
  42                 EnterCriticalSection(&m_cs);\r
  43         }\r
  44         ///\r
  45         void release() {\r
  46                 LeaveCriticalSection(&m_cs);\r
  47         }\r
  48 };\r
  49 \r
  50 \r
  51 ///\r
  52 class Acquire\r
  53 {\r
  54         SyncObject *m_so;       ///\r
  55 \r
  56 public:\r
  57         ///\r
  58         Acquire(SyncObject *i_so) : m_so(i_so) {\r
  59                 m_so->acquire();\r
  60         }\r
  61         ///\r
  62         Acquire(SyncObject *i_so, int i_n) : m_so(i_so) {\r
  63                 m_so->acquire(i_n);\r
  64         }\r
  65         ///\r
  66         ~Acquire() {\r
  67                 m_so->release();\r
  68         }\r
  69 };\r
  70 \r
  71 \r
  72 #endif // !_MULTITHREAD_H\r